Supercapacitive performance of reduce graphene oxide/nickel/titanium dioxide ternary nanocomposite / Nurafrina Azman

• Main Author: Azman, Nurafrina
• Format: Student Project
• Language: English
• Published: 2020
• Subjects: Electrochemistry. Electrolysis; Electronics; Sulfuric acid
• Online Access: https://ir.uitm.edu.my/id/eprint/56126/1/56126.pdf; https://ir.uitm.edu.my/id/eprint/56126/

In this report of rGO/Ni/TiO2 ternary nanocomposites, were examined at different amount (10%, 20% and 30%). Using electrochemical characterization such as cyclic voltammetry and charge-discharging time, the almost rectangular symmetry plot graph and the symmetry charge-discharge graph can be obtained. The specific capacitance for the 10% rGO/Ni/TiO2 range about (46.16- 489.91F/g), 20% 10% rGO/Ni/TiO2 range about (35.81 – 196.41F/g) and 30% 10% rGO/Ni/TiO2 range about (225.29 – 446.94 F/g) respectively. The 10% rGO/Ni/TiO2 at 20 mV/s show the highest specific capacitance (489.91 F/g) among all the others. By charging-discharging time graph, rGO/Ni/TiO2 exhibit higher energy density of 244.95 Wh/kg and power density of 4961.1 W/kg. This explain the capability of TiO2 in improving electrochemical performance in the electrical devices.